SMTL ID : 1q6e.1

Crystal Structure of Soybean Beta-Amylase Mutant (E178Y) with Increased pH Optimum at pH 5.4

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.95 Å

Oligo State

monomer

Ligands

1 x GLC- GLC: alpha-D-glucopyranose-(1-4)-alpha-D-glucopyranose(Non-covalent)

GLC-GLC.1: 15 residues within 4Å: Chain A: M.17, L.20, D.53, W.55, H.93, V.99, D.101, A.184, E.186, K.295, T.342, E.380, A.382, L.419, R.420 6 PLIP interactions: 6 interactions with chain A Hydrogen bonds: A:H.93, A:D.101, A:R.420, A:R.420 Water bridges: A:Q.94, A:A.184

1 x BGC- GLC: alpha-D-glucopyranose-(1-4)-beta-D-glucopyranose(Non-covalent)

BGC-GLC.2: 9 residues within 4Å: Chain A: V.99, Y.192, Q.194, W.198, F.200, H.300, W.301, M.346, L.383 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:H.300, A:Q.351, A:Q.194 Water bridges: A:Q.194, A:T.342

2 x SO4: SULFATE ION(Non-functional Binders)

SO4.3: 3 residues within 4Å: Chain A: R.372, T.480, L.481 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:L.481 Salt bridges: A:R.372 SO4.4: 5 residues within 4Å: Chain A: R.326, R.330, R.372, K.478, T.480 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:R.330 Salt bridges: A:R.326, A:R.372, A:K.478

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Hirata, A. et al., Structural and Enzymatic Analysis of Soybean {beta}-Amylase Mutants with Increased pH Optimum. J.Biol.Chem. (2004)

Release Date

2004-02-24

Peptides

beta-amylase: A

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

beta-amylase

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